RCA CTC187 CH3 32 inch TV Remote Control Breaks up Picture..Doesnt Change channels or volume

[Spit]

My RCA TV works fine with the manual controls (push buttons) on the
front of the set. When I use a Remote Control..it causes the picture
to break up wide white horizontial lines and then black out for a
second. The picture then returns on the same channel and at the same
volume level (no change). It doesn't matter what key on the remote I
press volume, channel mute etc. the result is the same. The TV also
seems to pick up non-RCA remote transmissions and has a similar but not
as pronounced result...same horizontal lines but not as strong.

I am thinking that I may have created a solder bridge somewhere but I
have looked and not found anthing. Can anyone tell me which IC and
which leg on the IC might look at?

I did solder in a another reciever from a junk set onto the controls
board and still had the problem ... I have tried flexing the small
board that the controls are on..I don't see any cracks or get any arc.
I don't see much on the board other that 2 resistors and one Cap..and
seeing as how the manual switches all work. I'm thinking it's on the
main board HELP!!

 

[Rono]

That's a real odd problem. I think maybe you got
it wired wrong. Maybe the connections are wrong.
It's ground, +5 volt supply, & output. Make sure
you have it wired right. Rono.

 

[Spit]

The set acts the same with the old or the new reciever, I put the old
one back in.
It just seems like that when the set picks up any type of remote
control signal it blacks out the picture and the sound, when I let go
of the button it comes right back in get any kind of signal at. I get
a similar result when I use a remote for a Go Video VCR, that this RCA
shouldn't react to at all but it breaks up the picture etc.

My problem is that I got the set 2nd hand and I have no idea if this
was an ongoing problem or if I created it with my ameture-ish
soldering. I suppose it could be a bad IC or if the resistors and or
the capacitor on the reciever board are there to somehow dampen or
limit the signal to the IC? Any other ideas please let me know